Abstract
Genotypic variation in water relations under drought is an important index of studying drought tolerance of crops. Abscisic acid (ABA) application helped in mitigating drought stress by improving water relations and yield. Three sunflower hybrids viz., DK-4040 (tall stature), S-278 (medium stature) and SF-187 (short stature) were subjected to different irrigation and ABA application regimes i.e., four irrigations (25 days after sowing (DAS), at bud initiation, at flower initiation and at achene formation) and with no ABA spray, three irrigations (25 days after sowing, at flower initiation and at achene formation) and with no ABA spray, three irrigations (25 days after sowing, at flower initiation and at achene formation) and with ABA spray at bud initiation, three irrigations (25 days after sowing), at bud initiation and at achene formation) and with no ABA spray, three irrigations (25 days after sowing), at bud initiation and at achene formation) and with ABA spray at flower initiation. The experiment was laid out in randomized complete block design with split plot arrangement and had three replications. Exogenous application of ABA under drought at either stage (bud or flower initiation) was helpful in ameliorating drought stress by improving water relations and yield of sunflower hybrids; however response was better when ABA was applied under drought at bud initiation than at flower initiation stage. Sunflower hybrid DK4040 showed better enhancement of drought tolerance by exogenous application of ABA under drought than SF-187 and S-278 because it showed more improvement in water potential, osmotic potential, turgor pressure, relative leaf water contents and achene yield.
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Claims 5
Claim · model-written summary
Exogenous ABA applied under drought at bud or flower initiation improved water relations and yield of sunflower hybrids.
- Taxon
- sunflower
Helianthus annuuse1 - Organ / stage
- bud or flower initiatione1
- Treatment
- Exogenous application of ABA under droughte1
- Outcome
- water relations and yielde1
- Direction
- improvinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Abscisic Acid, a Stress Hormone Helps in Improving Water Relations and YIELD OF SUNFLOWER (HELIANTHUS ANNUUS L.) HYBRIDS UNDER DROUGHT”
e1“Exogenous application of ABA under drought at either stage (bud or flower initiation) was helpful in ameliorating drought stress by improving water relations and yield of sunflower hybrids; however response was better when ABA was applied under drought at bud initiation than at flower initiation stage”
Claim · model-written summary
ABA applied under drought at bud initiation gave a better response than ABA applied at flower initiation.
- Taxon
- sunflowerHelianthus annuuse1
- Treatment
- ABA was applied under drought at bud initiatione1
- Outcome
- responsee1
- Direction
- bettere1
- Comparator
- flower initiation stagee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Abscisic Acid, a Stress Hormone Helps in Improving Water Relations and YIELD OF SUNFLOWER (HELIANTHUS ANNUUS L.) HYBRIDS UNDER DROUGHT”
e1“Exogenous application of ABA under drought at either stage (bud or flower initiation) was helpful in ameliorating drought stress by improving water relations and yield of sunflower hybrids; however response was better when ABA was applied under drought at bud initiation than at flower initiation stage”
Claim · model-written summary
Sunflower hybrid DK4040 showed better enhancement of drought tolerance by exogenous ABA than SF-187 and S-278.
- Taxon
- sunflowerHelianthus annuuse2
- Material
- DK4040e2
- Treatment
- exogenous application of ABA under droughte2
- Outcome
- drought tolerancee2
- Direction
- better enhancemente2
- Comparator
- SF-187 and S-278e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Abscisic Acid, a Stress Hormone Helps in Improving Water Relations and YIELD OF SUNFLOWER (HELIANTHUS ANNUUS L.) HYBRIDS UNDER DROUGHT”
e2“Sunflower hybrid DK4040 showed better enhancement of drought tolerance by exogenous application of ABA under drought than SF-187 and S-278 because it showed more improvement in water potential, osmotic potential, turgor pressure, relative leaf water contents and achene yield”
Claim · model-written summary
Exogenous ABA under drought gave DK4040 more improvement in water potential, osmotic potential and turgor pressure than SF-187 and S-278.
- Taxon
- sunflowerHelianthus annuuse2
- Material
- DK4040e2
- Treatment
- exogenous application of ABA under droughte2
- Outcome
- water potential, osmotic potential, turgor pressuree2
- Direction
- more improvemente2
- Comparator
- SF-187 and S-278e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Abscisic Acid, a Stress Hormone Helps in Improving Water Relations and YIELD OF SUNFLOWER (HELIANTHUS ANNUUS L.) HYBRIDS UNDER DROUGHT”
e2“Sunflower hybrid DK4040 showed better enhancement of drought tolerance by exogenous application of ABA under drought than SF-187 and S-278 because it showed more improvement in water potential, osmotic potential, turgor pressure, relative leaf water contents and achene yield”
Claim · model-written summary
Exogenous ABA under drought gave DK4040 more improvement in relative leaf water contents and achene yield than SF-187 and S-278.
- Taxon
- sunflowerHelianthus annuuse2
- Material
- DK4040e2
- Treatment
- exogenous application of ABA under droughte2
- Outcome
- relative leaf water contents and achene yielde2
- Direction
- more improvemente2
- Comparator
- SF-187 and S-278e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Abscisic Acid, a Stress Hormone Helps in Improving Water Relations and YIELD OF SUNFLOWER (HELIANTHUS ANNUUS L.) HYBRIDS UNDER DROUGHT”
e2“Sunflower hybrid DK4040 showed better enhancement of drought tolerance by exogenous application of ABA under drought than SF-187 and S-278 because it showed more improvement in water potential, osmotic potential, turgor pressure, relative leaf water contents and achene yield”
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See all 75 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.